Question

The thermal capacity of $100\text{g}$ of aluminum (specific heat $=0.2{\text{cal/g}}^{\circ }\text{C})$ is

• A. $0.002{\text{cal/}}^{\circ }\text{C}$
• B. $20{\text{cal/}}^{\circ }\text{C}$
• C. $200{\text{cal/}}^{\circ }\text{C}$
• D. $100{\text{cal/}}^{\circ }\text{C}$

Answer 1

The correct option is B $20{\text{cal/}}^{\circ }\text{C}$

Given,
Mass of aluminium $\left(m\right)=100\text{g}$
Specific heat of aluminium $\left(c\right)=0.2{\text{cal/g}}^{\circ }\text{C}$
Thermal capacity of material $\left(S\right)$ = mass of material $\left(m\right)$ $\times$ specific heat capacity of material $\left(c\right)$
Thus,
$S=100\times 0.2=20{\text{cal/}}^{\circ }\text{C}$
Hence, option (b) is the correct answer.